The adaptive ability performance test (ADAPT): A factor analytic study in clients with intellectual disabilities.
Femke Jonker, Peter de Looff, Sara van Erp and 2 others
PMID 36288909WHAT IT FOUND
A Dutch proxy questionnaire for adults with mild intellectual disability or borderline intellectual functioning grouped 62 daily skills into eight scales, such as self-care, money, social skills and responsible choices, with similar interpretation across new users.
Key findings
01The 65-item ADAPT was reduced to 62 items forming eight skill scales, such as self-care, household tasks, social alignment, school skills, money and mail, daily structure, and responsible choices.
02When the revised 62-item version was checked on a separate 747-person sample, it held up moderately well.
03The questionnaire performed similarly when compared across the randomly assigned halves of the sample.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
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What it does not show
The sample was a convenience sample from Dutch care, mental health, forensic and prison settings, so it may not represent other countries or clients not already receiving support. The ADAPT was completed by proxies, not by clients, and the authors say a client-interview version still needs development. The revised model matched the data only moderately well, and the authors say it might be improved. The questionnaire does not measure language receptivity, speech or motor skills. The first author receives royalties from the publisher of the Dutch ADAPT.
Declared interests
The Dutch version of the ADAPT is published by Hogrefe Publishers, and the first author receives royalties.
The easy way to misread this
Do not treat this paper as proof that the ADAPT diagnoses intellectual disability or grades its severity. The paper's stated aim was to examine how the 65 proxy-reported items cluster into underlying scales, and the reported results are the eight-scale grouping and how well it matched the data.